/* Copyright 203-2115 AtomWare Technology Pty Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 * The flowing information must be keep 
 * Order.java
 * jackysoft-basic-core
 * 2012-12-21下午12:33:26
 * @author 屈甲康
 * QQ285799123
 * mailto:qujiakang@gmail.com
 */

package org.jackysoft.query;

import org.apache.commons.lang3.StringUtils;

public class Order extends Aggregation {

	/**
	 * 
	 */
	private static final long serialVersionUID = -5123242231899216302L;

	public Order() {
		super();
	}

	public Order(String name) {
		this.name = name;
	}

	public Order(String name, String style) {
		this(name);
		this.style = style;
	}

	public String orderString(String pf) {
		return this.aggregate(pf);
	}
	
	public String getOrder(){
		return StringUtils.isEmpty(this.orderString(""))?"":" order by "+this.orderString("");
	}

}
